A low-energy consumption wet turbulent bed and deep purification integrated tower
By adopting the design of a low-energy-consuming wet turbulent bed and deep purification integrated tower in the wet dust removal system, and using technical means such as the Venturi jet intercept layer, countercurrent suspended washing layer and multi-channel pneumatic cyclone dewaterer, the problems of low efficiency and high water consumption in high temperature and high humidity flue gas treatment are solved, and the effects of efficient dust removal, low energy consumption and ultra-low emissions are achieved.
Patent Information
- Application Number
- CN202311457875.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-04
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2043-11-04
AI Technical Summary
When the existing wet dust removal system deals with high temperature, high humidity, high Ca+2 and high viscosity dust-containing vapor flue gas, there are problems such as low fine dust removal and dehydration efficiency, stable emission concentration and difficult to meet ultra-low emission standards, large equipment footprint, weak washing strength, low water and gas contact heat exchange efficiency, and large water consumption.
It adopts a low-energy-consuming wet turbulent bed and deep purification integrated tower, including a first-stage wet reverse spray cleaning dust removal section and a second-stage turbulent bed multi-channel pneumatic cyclone dehydration section. The Venturi jet interceptor layer and the countercurrent suspension washing layer are set up in the first stage, and the turbulent bed scrubber, water mist generator, sound wave agglomeration device and multi-channel pneumatic cyclone dehydrator are set up in the second stage to achieve multi-level flue gas scrubbing and dehydration.
The flue gas dust removal and grading efficiency has been improved by 30%, and the total dust removal efficiency has reached 50%, achieving the compliance of ultra-low emission standards, reducing the absolute humidity of smoke exhaust and the concentration of wet smoke plumes, reducing water consumption by 40%, and reducing the area by 30%.
Smart Images

Figure CN117695796B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to dust removal and ultra-low emission devices for air pollution prevention and control, and in particular to a low-energy consumption wet turbulent bed and deep purification integrated tower, belonging to the technical field of flue gas dust removal, desulfurization and purification devices. Background Art
[0002] Dust-laden steam flow wet flue gas is the most common source of flue gas pollution in the production process of the iron and steel metallurgical industry. In particular, it is still difficult to achieve ultra-low emission requirements for dust-laden steam flow flue gas with characteristics such as high temperature, high humidity, high Ca+2 and high viscosity. The commonly used improved wet dust removal system still has low efficiency in fine dust removal and dehydration and mist removal, and it is very difficult to stably achieve the ultra-low emission standards in the "Opinions on Promoting the Implementation of Ultra-Low Emissions in the Iron and Steel Industry". The classification efficiency of 5-10μm inhalable dust is low, and the equipment occupies a large area; the washing intensity is weak, the water-gas contact heat exchange efficiency is low, the exhaust absolute humidity is high, the colored wet smoke plume, commonly known as "white smoke" has a high concentration, and the water consumption is large.
[0003] As the country continues to promote air pollution control, the steel, metallurgy, cement and other industries have implemented special emission limits for air pollutants at different times, and strengthened the control of inhalable dust, especially fine particulate matter (PM2.5). The implementation of policies has put forward higher ultra-low emission requirements for enterprises. The development of high-efficiency, low-energy wet dust removal and deep purification devices and systems with stable performance has become an urgent task for energy conservation, emission reduction, carbon reduction and green transformation in the steel and metallurgy industry. Summary of the invention
[0004] The object of the present invention is to provide a low-energy consumption wet turbulent bed and a deep purification integrated tower to solve the defects mentioned in the above background technology.
[0005] The technical solution adopted in the present invention is:
[0006] A low-energy consumption wet turbulent bed and deep purification integrated tower, comprising a tower body, a flue gas inlet is provided on the lower side wall of the tower body, a flue gas pretreatment section is provided in the flue gas inlet, a clean flue gas outlet is provided at the upper end of the tower body, a dirt collecting hopper is provided at the lower end of the tower body, and a first-level wet reverse jet washing and dust removal section and a second-level turbulent bed multi-channel pneumatic cyclone dehydration section are provided in sequence from bottom to top in the tower body;
[0007] The first-stage wet reverse jet scrubbing and dust removal section is provided with a Venturi jet interception layer, a reverse flow suspension scrubbing layer and a Venturi rectifying layer in sequence from bottom to top;
[0008] The secondary turbulent bed multi-channel pneumatic cyclone dehydration section is provided with a turbulent bed scrubber, a turbulent bed water mist generator, a sonic agglomeration device, a multi-channel pneumatic cyclone dehydrator and a flow guiding and gas equalizing device in sequence from bottom to top.
[0009] As a further improvement of the above technical solution, the Venturi jet interception layer includes a liquid distributor, a Venturi rod grid layer and a water mist generator, the liquid distributor is composed of a Venturi circular rod grid with equal cross-section, the Venturi rod grid layer is composed of one or more layers of Venturi circular rod grid with equal cross-section, the Venturi circular rod grid layer with equal cross-section is composed of a number of hollow circular tubes arranged at equal distances on the same plane, the rod grid cross-sections of adjacent Venturi circular rod grid layers with equal cross-section are arranged in the same direction and are arranged alternately, the water mist generator is installed on the wall of the hollow circular tube, the water mist generator is composed of a slit nozzle or a flat nozzle, the water mist generator is symmetrically distributed between two hollow circular tubes, and the relative horizontal angle is in the range of positive and negative 45 degrees, a flow pressure regulating valve is arranged on the liquid supply pipe of the liquid distributor, a bubbling foam layer is formed on the surface of the Venturi rod grid layer, and the height adjustment range of the bubbling foam layer is between 100mm and 300mm.
[0010] As a further improvement of the above technical solution, the Venturi rectifying layer is composed of one or more layers of Venturi circular rod grid layers with equal cross-section, and the Venturi circular rod grid layers with equal cross-section are composed of a number of hollow circular tubes arranged at equal distances on the same plane, and the rod grid cross-sections of adjacent Venturi circular rod grid layers with equal cross-section are arranged in the same direction.
[0011] As a further improvement of the above technical solution, the turbulent bed scrubber is a three-phase fluidized bed contactor with gas as the continuous phase and gas-liquid countercurrent or crosscurrent as the operation mode. The turbulent bed scrubber includes a turbulent fluidized bed and a filler, and the filler is a hollow plastic or stainless steel float.
[0012] As a further improvement of the above technical solution, the acoustic wave agglomeration device is composed of a fixed frequency generator N, an adjustable frequency generator E, and an acoustic wave transmission tube M. The output ends of the fixed frequency generator N and the adjustable frequency generator E are connected to the input end of the acoustic wave transmission tube M, and the output end of the acoustic wave transmission tube M is connected to the tower body.
[0013] As a further improvement of the above technical solution, the multi-channel pneumatic cyclone dehydrator is composed of a plurality of wet cyclones evenly distributed in parallel along the flue gas flow direction, the wet cyclone is a circular cylinder, and one or more layers of outward cyclone plates are built into the wet cyclone.
[0014] As a further improvement of the above technical solution, a sewage discharge port is provided at the bottom of the sewage collecting hopper.
[0015] The advantages of the present invention are:
[0016] 1. After water mist washing, contact cooling and other steps of the flue gas pretreatment section, the flue gas to be treated enters the primary wet reverse jet washing and dust removal section, where the flue gas is cooled and a gas-liquid separation, dust removal and dehydration are achieved under the action of gravity.
[0017] 2. The setting of the Venturi jet interception layer reduces the flow cross section between the tubes of the Venturi rod grid layer. When the washing liquid of the countercurrent suspension washing layer falls, the Venturi jet effect is generated between the tubes of the Venturi rod grid layer and the hot flue gas flowing upward under the negative pressure. The flue gas flow energy is increased, the relative velocity of gas and liquid is increased, the dust particles are wetted by water, and inertial collision and condensation occur between the dust particles and the droplets, so that the flue gas is further washed and purified;
[0018] A water mist generator is arranged on the tube wall of the Venturi rod grid layer, and high-pressure washing liquid is sprayed between the tubes of the Venturi rod grid layer through slit-shaped nozzles or flat nozzles symmetrically distributed at a certain angle relative to the horizontal angle. The high-speed spray collides with the flue gas and contacts it at a high speed in a shear interception state, which intercepts and washes the particles in the upward steam flow flue gas, and at the same time increases the adjustable washing liquid carrying capacity of this layer;
[0019] The high-flow washing liquid with uniform density and high flow rate discharged from the upper countercurrent suspension washing layer is accumulated in the venturi bar grid layer, so that the hot flue gas rising in the countercurrent under the negative pressure arouses a large number of bubbles, and the water vapor is ejected and swirled up along the pipe wall, generating "liquid-in-gas" to form an overturned bubbling foam layer. The height of the bubbling foam layer is adjusted between 100mm and 300mm by the regulating valve on the liquid supply pipe.
[0020] Here, the dust is affected by inertial diffusion and is constantly disturbed by foam, forming flue gas jets and bubble-shaped gas-liquid contact surfaces, producing flue gas water bath effect, Venturi jet effect and bubbling condensation effect. Strong turbulence is generated between the water mist particles with fine dust particles as the core suspended in the flue gas, the flue gas is fully washed, the effect of condensed dust particles as condensation nuclei is accelerated, and the dust particles are easily condensed and captured, which improves the dust classification efficiency by 30% compared with the usual wet scrubbing dust collector.
[0021] 3. The flue gas continues to ascend to the countercurrent suspension washing layer. The countercurrent suspension washing layer consists of multiple groups of water mist generators evenly distributed on the cross-section of the tower body. The water mist generator produces uniform, dense, large-flow water mist, and the dust-containing steam flow flue gas is efficiently suspended and washed and purified. The dense fine water mist carried by the flue gas after washing and purification ascends to a certain space for further condensation and sedimentation.
[0022] 4. When the airflow mixed with water droplets enters the cyclone dehydration plate, the tiny water droplets collide and accumulate on the cyclone plate to form large particle water droplets. Driven by the airflow, the water droplets are thrown along the blades in a centrifugal direction to the inner wall of the component and flow down. At the same time, the water droplets entrained in some gases are also separated due to the rotation of the airflow. The three-stage water vapor separation can remove 99% of the mechanical water in the flue gas in a large range and make the flue gas flow evenly on a larger section. Compared with the conventional wet scrubbing dust removal device technology, the technology of the present invention improves the total dust removal efficiency by 50%, achieving ultra-low emissions.
[0023] 5. The wet variable flow dust removal and ultra-low emission integrated tower has multiple layers of washing and flushing set vertically up and down. The tower body has a large amount of liquid carried per unit cross-section, a long countercurrent contact time, a 25% increase in washing intensity, a long water vapor cooling and condensation process, and high contact heat transfer efficiency, which effectively reduces the absolute humidity of exhaust gas, greatly reduces the concentration of wet smoke plume "white smoke", and reduces water consumption by 40%.
[0024] 6. The wet variable-flow dust removal and ultra-low emission integrated tower occupies a small area, which is 30% less than the conventional wet dust removal tower, washing and dehydration tower separate technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the present invention.
[0026] Figure 2 It is a cross-sectional view of the Venturi jet interception rectifier rod grid layer in the present invention.
[0027] Figure 3 It is a structural schematic diagram of a water mist generator installed on the wall of a hollow circular tube.
[0028] In the figure, 1 is the tower body, 2 is the flue gas inlet, 3 is the flue gas pretreatment section, 4 is the clean flue gas outlet, 5 is the sewage collecting hopper, 6 is the countercurrent suspension washing layer, 7 is the Venturi rectifying layer, 8 is the turbulent bed water mist generator, 9 is the acoustic wave agglomeration device, 10 is the flow guide and gas equalization device, 11 is the liquid distributor, 12 is the Venturi rod grid layer, 13 is the water mist generator, 14 is the flow pressure regulating valve, 15 is the filler, 16 is the lower support device, 17 is the upper limit device, 18 is the wet cyclone, 19 is the outward cyclone plate, and 20 is the sewage discharge port. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] A low-energy consumption wet turbulent bed and deep purification integrated tower, comprising a tower body 1, a flue gas inlet 2 is provided on the lower side wall of the tower body 1, a flue gas pretreatment section 3 is provided in the flue gas inlet 2, a clean flue gas outlet 4 is provided at the upper end of the tower body 1, a dirt collecting hopper 5 is provided at the lower end of the tower body 1, and a first-level wet reverse jet washing and dust removal section and a second-level turbulent bed multi-channel pneumatic cyclone dehydration section are sequentially provided in the tower body 1 from bottom to top;
[0031] The first-stage wet reverse jet scrubbing and dust removal section is provided with a Venturi jet interception layer, a reverse flow suspension scrubbing layer 6 and a Venturi rectifying layer 7 in sequence from bottom to top;
[0032] The secondary turbulent bed multi-channel pneumatic cyclone dehydration section is provided with a turbulent bed scrubber, a turbulent bed mist generator 8, a sonic agglomeration device 9, a multi-channel pneumatic cyclone dehydrator and a flow guide and gas equalization device 10 in sequence from bottom to top.
[0033] As a further improvement of the above technical solution, the Venturi jet interception layer includes a liquid distributor 11, a Venturi rod grid layer 12 and a water mist generator 13, the liquid distributor 11 is composed of a Venturi circular rod grid with equal cross-section, the Venturi rod grid layer is composed of one or more layers of Venturi circular rod grid layers with equal cross-section, the Venturi circular rod grid layer with equal cross-section is composed of a number of hollow circular tubes arranged at equal distances on the same plane, the rod grid cross-sections of adjacent Venturi circular rod grid layers with equal cross-sections are arranged in the same direction and are arranged alternately, the water mist generator 13 is installed on the wall of the hollow circular tube, the water mist generator 13 is composed of a slit nozzle or a flat nozzle, the water mist generator 13 is symmetrically distributed between two hollow circular tubes, and the relative horizontal angle is in the range of positive and negative 45 degrees, a flow pressure regulating valve 14 is arranged on the liquid supply pipe of the liquid distributor 11, a bubbling foam layer is formed on the surface of the Venturi rod grid layer 12, and the height adjustment range of the bubbling foam layer is between 100mm and 300mm.
[0034] The Venturi jet interception layer evens out the upward flue gas, and utilizes the change in the flow section of the flue gas in the tower body and the Venturi effect to further remove the entrained tiny droplets and intercept fine particles in the upward flue gas, completing the secondary water-gas separation and purification. The flue gas continues to ascend in a state close to "plug flow".
[0035] As a further improvement of the above technical solution, the Venturi rectifying layer 7 is composed of one or more layers of equal-section Venturi circular rod grid layers, and the equal-section Venturi circular rod grid layers are composed of a number of hollow circular tubes arranged at equal distances on the same plane, and the rod grid cross-sections of adjacent equal-section Venturi circular rod grid layers are arranged in the same direction.
[0036] As a further improvement of the above technical solution, the turbulent bed scrubber is a three-phase fluidized bed contactor with gas as a continuous phase and gas-liquid countercurrent or cross-current as an operation mode. The turbulent bed scrubber includes a turbulent fluidized bed and a filler 15, and the filler 15 is a hollow plastic or stainless steel float. The turbulent fluidized bed includes a lower support device 16 and an upper limit device 17. The lower support device 16 is a lower support sieve plate or a lower support plate wire mesh grid, and the upper limit device 17 is an upper limit sieve plate or an upper limit wire mesh grid. The filler is filled in the space enclosed by the lower support device and the upper limit device. The opening rate of the lower support sieve plate is 0.42-0.7, and the opening rate of the upper limit device is 0.7-0.9. When the flue gas passes through the turbulent fluidized bed, the floating balls rotate turbulently in the tower body and collide with each other. The turbulent bed water mist generator sprays from top to bottom to wet the surface of the balls. Due to the contact between gas, liquid and solid, the liquid film on the surface of the balls is constantly renewed, which enhances the contact and mass transfer between gas and liquid and improves the graded dust removal efficiency of the system.
[0037] As a further improvement of the above technical solution, the acoustic wave agglomeration device 9 is composed of a fixed frequency generator N, an adjustable frequency generator E, and an acoustic wave transmission tube M. The output ends of the fixed frequency generator N and the adjustable frequency generator E are connected to the input end of the acoustic wave transmission tube M, and the output end of the acoustic wave transmission tube M is connected to the tower body.
[0038] The acoustic wave agglomeration device is arranged above the turbulent bed water mist generator 8. It uses the principle of acoustic wave agglomeration to make the water mist particles with fine particles as the core suspended in the flue gas vibrate violently, collide and break through the dust particle film, causing the dust particles to agglomerate and condense, thereby improving the capture efficiency of the wet dust removal system for MP2.5 fine particles.
[0039] As a further improvement of the above technical solution, the multi-channel pneumatic cyclone dehydrator is composed of a plurality of wet cyclones 18 evenly distributed in parallel along the flue gas flow direction. The wet cyclone 18 is a circular cylinder, and one or more layers of outward cyclone plates 19 are built into the wet cyclone 18.
[0040] When the airflow mixed with water droplets enters the cyclone dehydration plate, the tiny water droplets collide and accumulate on the cyclone plate to form large particle water droplets, and driven by the airflow, the water droplets are thrown along the blades in the centrifugal direction to flow down the inner wall of the component, and at the same time, some water droplets entrained in the gas are also separated due to the rotation of the airflow. The three-stage water vapor separation can remove 99% of the mechanical water in the flue gas in a large range and make the flue gas flow evenly on a larger section.
[0041] The outlet emission concentration of the first-stage wet reverse jet scrubbing dust removal section is ≤10mg / Nm³, which creates low-temperature and low-concentration uniform flow inlet conditions for fine dust removal in the second-stage turbulent bed multi-channel pneumatic cyclone dehydration section.
[0042] As a further improvement of the above technical solution, a sewage discharge port 20 is provided at the bottom of the sewage collecting hopper 5 .
[0043] Here’s how it works:
[0044] 1. After water mist washing, contact cooling and other steps of the flue gas pretreatment section, the flue gas to be treated enters the primary wet reverse jet washing and dust removal section, where the flue gas is cooled and a gas-liquid separation, dust removal and dehydration are achieved under the action of gravity.
[0045] 2. The setting of the Venturi jet interception layer reduces the flow cross section between the tubes of the Venturi rod grid layer. When the washing liquid of the countercurrent suspension washing layer falls, the Venturi jet effect is generated between the tubes of the Venturi rod grid layer and the hot flue gas flowing upward under the negative pressure. The flue gas flow energy is increased, the relative velocity of gas and liquid is increased, the dust particles are wetted by water, and inertial collision and condensation occur between the dust particles and the droplets, so that the flue gas is further washed and purified;
[0046] A water mist generator is arranged on the tube wall of the Venturi rod grid layer, and high-pressure washing liquid is sprayed between the tubes of the Venturi rod grid layer through slit-shaped nozzles or flat nozzles symmetrically distributed at a certain angle relative to the horizontal angle. The high-speed spray collides with the flue gas and contacts it at a high speed in a shear interception state, which intercepts and washes the particles in the upward steam flow flue gas, and at the same time increases the adjustable washing liquid carrying capacity of this layer;
[0047] The high-flow washing liquid with uniform density and high flow rate discharged from the upper countercurrent suspension washing layer is accumulated in the venturi bar grid layer, so that the hot flue gas rising in the countercurrent under the negative pressure arouses a large number of bubbles, and the water vapor is ejected and swirled up along the pipe wall, generating "liquid-in-gas" to form an overturned bubbling foam layer. The height of the bubbling foam layer is adjusted between 100mm and 300mm by the regulating valve on the liquid supply pipe.
[0048] Here, the dust is affected by inertial diffusion and is constantly disturbed by foam, forming flue gas jets and bubble-shaped gas-liquid contact surfaces, producing flue gas water bath effect, Venturi jet effect and bubbling condensation effect. Strong turbulence is generated between the water mist particles with fine dust particles as the core suspended in the flue gas, the flue gas is fully washed, the effect of condensed dust particles as condensation nuclei is accelerated, and the dust particles are easily condensed and captured, which improves the dust classification efficiency by 30% compared with the usual wet scrubbing dust collector.
[0049] 3. The flue gas continues to ascend to the countercurrent suspension washing layer. The countercurrent suspension washing layer consists of multiple groups of water mist generators evenly distributed on the cross-section of the tower body. The water mist generator produces uniform, dense, large-flow water mist, and the dust-containing steam flow flue gas is efficiently suspended and washed and purified. The dense fine water mist carried by the flue gas after washing and purification ascends to a certain space for further condensation and sedimentation.
[0050] 4. When the airflow mixed with water droplets enters the cyclone dehydration plate, the tiny water droplets collide and accumulate on the cyclone plate to form large particle water droplets, and driven by the airflow, the water droplets are thrown along the blades in the centrifugal direction to the inner wall of the component and flow down. At the same time, the water droplets entrained in some gases are also separated due to the rotation of the airflow. The three-stage water vapor separation can remove 99% of the mechanical water in the flue gas in a large range and make the flue gas flow evenly on a larger section. Compared with the conventional wet scrubbing dust removal device technology, the technology of the present invention improves the total dust removal efficiency by 50%, achieving ultra-low emissions.
[0051] 5. The wet variable flow dust removal and ultra-low emission integrated tower has multiple layers of washing and flushing set vertically up and down. The tower body has a large amount of liquid carried per unit cross-section, a long countercurrent contact time, a 25% increase in washing intensity, a long water vapor cooling and condensation process, and high contact heat transfer efficiency, which effectively reduces the absolute humidity of exhaust gas, greatly reduces the concentration of wet smoke plume "white smoke", and reduces water consumption by 40%.
[0052] 6. The wet variable-flow dust removal and ultra-low emission integrated tower occupies a small area, which is 30% less than the conventional wet dust removal tower, washing and dehydration tower separate technology.
[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low energy consumption wet turbulent bed and deep purification integrated tower, characterized in that: It comprises a tower body, wherein a flue gas inlet is arranged on the lower side wall of the tower body, a flue gas pretreatment section is arranged in the flue gas inlet, a clean flue gas outlet is arranged at the upper end of the tower body, a dirt collecting hopper is arranged at the lower end of the tower body, and a first-stage wet reverse jet washing and dust removal section and a second-stage turbulent bed multi-channel pneumatic cyclone dehydration section are arranged in sequence from bottom to top in the tower body; The first-stage wet reverse jet scrubbing and dust removal section is provided with a Venturi jet interception layer, a reverse flow suspension scrubbing layer and a Venturi rectifying layer in sequence from bottom to top; The secondary turbulent bed multi-channel pneumatic cyclone dehydration section is provided with a turbulent bed scrubber, a turbulent bed water mist generator, a sonic agglomeration device, a multi-channel pneumatic cyclone dehydrator and a flow guide and gas equalization device in order from bottom to top; The Venturi jet interception layer includes a liquid distributor, a Venturi rod grid layer and a water mist generator; the liquid distributor is composed of a Venturi circular rod grid with equal cross-section, the Venturi rod grid layer is composed of one or more layers of Venturi circular rod grid with equal cross-section, the Venturi circular rod grid layer with equal cross-section is composed of a number of hollow circular tubes arranged at equal distances on the same plane, the rod grid cross-sections of adjacent Venturi circular rod grid layers with equal cross-sections are arranged in the same direction and are alternately arranged, the water mist generator is installed on the wall of the hollow circular tube, the water mist generator is composed of a slit nozzle or a flat nozzle, and the water mist generator is symmetrically distributed between two hollow circular tubes, with a relative horizontal angle of positive and negative 45 degrees; A flow pressure regulating valve is provided on the liquid supply pipe of the liquid distributor, and a bubbling foam layer is formed on the surface of the Venturi rod grid layer, and the height adjustment range of the bubbling foam layer is between 100mm and 300mm; The Venturi rectifying layer is composed of one or more layers of Venturi circular rod grid layers with equal cross-sections, wherein the Venturi circular rod grid layers with equal cross-sections are composed of a plurality of hollow circular tubes arranged at equal distances on the same plane, and the rod grid cross-sections of adjacent Venturi circular rod grid layers with equal cross-sections are arranged in the same direction; The turbulent bed scrubber is a three-phase fluidized bed contactor with gas as continuous phase and gas-liquid countercurrent or crosscurrent as operation mode. The turbulent bed scrubber comprises a turbulent fluidized bed and fillers, and the fillers are hollow plastic or stainless steel floating balls.
2. A low energy consumption wet turbulent bed and deep purification integrated tower according to claim 1, characterized in that: The acoustic wave agglomeration device is composed of a fixed frequency generator, an adjustable frequency generator, and an acoustic wave transmission tube. The output ends of the fixed frequency generator and the adjustable frequency generator are connected to the input end of the acoustic wave transmission tube, and the output end of the acoustic wave transmission tube is connected to the tower body.
3. A low energy consumption wet turbulent bed and deep purification integrated tower according to claim 1, characterized in that: The multi-channel pneumatic cyclone dehydrator is composed of a plurality of wet cyclones evenly distributed in parallel along the flow direction of the flue gas. The wet cyclone is a circular cylinder with one or more layers of outward cyclone plates built in it.
4. A low energy consumption wet turbulent bed and deep purification integrated tower according to claim 1, characterized in that: A sewage discharge port is arranged at the bottom of the sewage collecting hopper.
Citation Information
Patent Citations
Single-tower and double-circulation desulfurization and dust removal device and technology
CN106693657A
Dedusting and deep purification apparatus with high efficiency and low energy consumption for flue gas in metallurgical slag treatment process
CN106731403A
Rotor turbulence efficient dust and mist removal device
CN210079157U
Efficient venturi rod assembly for desulfurization and dust removal integration
CN210278718U
A low-energy wet variable-flow dust removal and deep purification integrated tower
CN221015207U